The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1887-08-10
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SCIENTIFIC AND INDUSTRIAL

NJ GdCH CQulnOA, says an uSbIOHO-
mer, "there are about 102 hours that
both poles have simultaneous view of the
sun or part of it; and for thirty-four
hours the whole Of It's disc is visible to
both
Cotton has been successfully intro
duced into three districts of the eau.
casus, and extensive plantations are to
be established in the vicinity of Erivan.
The Caucasian Agricultural Society will
send agents to study the American sys-
| TEN of culture.
An English mineralogist, Mr.. Bryce
Wright, gives the prices of iron in the
form of meteorites as from $15 or $50 a
pound to as much as $50 an ounce. Some
of the Russian mcteorites are worth $25
to $50 an ounce, and the prices generally
have trebled in the last few years.
BY experiments on dogs, NJ. E. Quin.
quad finds that cold bath increases ten
fold the rate Of consumption of oxygen,
double or treble the quantity of air passed
through the lungs, augment the amount
of carbonic acid expelled, and very much
increase the respiratory combustions and
the production of blood-sugar Hot
baths have,a like influence, but in less
degree.
Experiments are believed to show that
aseptol, or orthopenot-sulphate, is des-
tined to take the place of carbolic acid
as disinfectant and antiseptic. 1t is
syrupy, brown fluid of aromatic odor,
and soluble in alcohol, glycerine, and wa
ter, and is not irritating in rs strong as
10 per cent. solutions. As an antiseptic
it is said to equal carbolic acid, while pos
sessing also the advantage of pleasanter
odor, more solubility, etc.
Dr. r. W. Raymond lately called at
tention TO the reputed connection be-
tween certain plants and metals in the
underlying soil, Thus zinc violet or
GdlmeireHclea, sometimes regarded as
a distinct species under the name of Ti7-
IL cd'dmdm dmindrid-points out the hills
containing calamine, or zinc-ore, in
Rhenish Prussia and Belgium. The lead
plant, AmG1phG eanesceHs is believed by
American miners to grow only in locali-
ties containing galena, and EyiOgonUm
ordlpolium is probably destined to be
known in the west as the silver plant.
Careful experiments on the sense of
smell in dogs have been made by George
j. Romanes, who has communicated the
results to the Linnean Society of Lon
don. He finds that not only the feet but
the whole body of man exhale peculiar
or individual odor, which dog can rec
ognize rs that of his master amid
crowd of other persons; that the
individual quality of this odor can be rec
ognized at great distances TO windward, or
in calm weather at great distances in any
direction; and that even powerful per-
fumes may not overcome this odor. Yet
single sheet of brown paper, when
stepped upon instead of the ground, and
afterward removed, was sufficient to pre-
vent Mr.. Romanes' dog from following
his trail.
Heights, under the equator, from the
perpetual snow-are divided by Meyer
into eight zones or regions, which he
names from the Characteristic plants; /,
palms and bananas, beginning at sea
level; 2, tree-ferns and frs, at ., 020 feet;
3, myrtlcs and laurels, 1850 feet 4,
evergreen dicotyledonous trees, G,120
feet; 8, European dicotyledonous trees,
8, 100 feet; 6, pines, 10, 140 feet: :, rho
dodendrons, IL, $50 feet; s, Alpine
plants, ID, 170 feet. The corresponding
zones in latitude, at sea-leyel, are: /,
equatorial, latitude 0 degrees-15 de
grees; 2, tropical, Is degrees-23 de-
grees; 3, sub-tropical, 23 degrees-34
degrees; 4, warm-temperate, "a degrees
.-45 degrees-5S degrees; @, sub-arctic,
SO degrees-6G degrees; Z, arctic, GG
degrees-7s degrees: s, polar, rs de-
grees-ss degrees. Beyond SO degrees
vegetation is supposed to be lacking.